Wire-nailing machine



(No Model.)

L. GODDU.

WIRE NAILING MACHINE.

Patented Feb. 26, 1889.

UNiTnn PATENT OFFICE.

LOUIS G'ODDU, OE WINCHESTER, ASSIGNOR TO JAMES W. BROOKS, TRUSTEE,

OF CAMBRIDGE, AND FRANK F. STANLEY, ASSOCIATE TRUSTEE, OF BOS- TON,MASSACHUSETTS.

WIRE-MAILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 398,606, dated February26, 1889.

Application filed April 5, 1888. Serial No. 269,679- (No model.)

To all whom, it may concern.-

Be it known that I, LOUIS GODDU, of \Vin chester, county of Middlesex,State of Massachusetts, have invented an Improvement in Machines forInsert ing Screw- Threads in Leather- 01k, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like letters on the drawings representing like parts.

This invention relates to machines for insorting screws cut fromscrew-threaded wire into boots and shoes, it being an improvement uponthe machine substantially such as shown and described in United StatesReissue Paty ent No. 7,033, granted to me April l, 1871).

My present invention relates more particu- 5 arrangement of the bolt orscrew receiving larly to the spindle employed to feed the wire tocutters, and has for its object to improve the construction of the same,as will be described, by which durability is imparted to thesaidspindle.

holes therein, and Figs. 3 and t details to clearly show theconstruction of my improved journahbearing.

The spindle (1, having the enlargement a, the feed-rolls a (see Fig. 4)and gears a to 1 rotate them, the slide a to drive said gears,

In the machine referred to the wire to be I acted upon is fed forwardthrough the spindle by feed-rolls operated by a slide forming part ofthe said spindle, the said slide being provided with screw-threads whichare engaged by a threaded sleeve secured to the said slide by suitablescrews, and having loosely l mounted on it a collar connected to themeclr anism by which the said spindle reciprocated, the said collarbeing secured on the threaded sleeve by a nut screwed thereon.

In practice the loose collar on the threaded l sleeve becomes worn afterconsiderable use l by the repeated reciprocations of the slide, 1thereby giving rise to lost motion between the said collar and sleeveand nut, thus affecting j the regularity of the feed.

This invention has for one of its objects to take up the Wear betweenthe parts referred 1 to; and I accomplish this feature of my inventionby providing the nut by which the collar and provided with screw-threadsa, to be engaged by the threaded sleeve a, the loose collar and nut aare all substantially as in my reissue patent referred to. The loosecollar o in practice is connected to the operating mechanism (not shown,but substantially such as shown in the patent referred to) by which theslide a is reciprocatcd. After considerable use the collar a becomesworn, thereby giving rise to lost motion between the s rid collar andflange 1) on the sleeve, and also between the said collar and nut a Totake up the wear referred to, the nut a is provided with a series ofholes, Z), drilled in line with or so as to follow a single-pitchthread, as W, 011 the inner side of the said nut. Each hole in the nutin turn registers with a hole in the sleeve a and the said nut andsleeve are united, as shown, by a bolt or screw, b It will thus be seenthat as the collar becomes worn the nut a may be partially rotated orturned so as to force the said collar against the flange and take up thewear, the partial rotation of the said nut bringing another hole, I), inline with the hole in the sleeve.

Another feature of my invention consists in providing the spindle withbearings (see Fig. 3) for the journals of the feed-rolls, gears, &c.,the said bearings being constructed as will be described, whereby theymay be secured firmly in place withoutscrews and similar devices.

The recess in the journal-box for each bearing 0 is made greater than asemicircle that is, the top or upper face, as c, of the journal-box isabove or to one side of the center, as 0 from which the said recess wasstruck. The bearing 0 has its inner or jour nal-receiving face, 0 in theare of a circle having its center as at c, the said center being in linewith the top or upper face, 3, of the journal-box. It will thus be seenthat the outer and inner faces of the bearing are struck from twodifferent centers, as c c, and therefore the bearing is thickest andstrongest at its bottom, as clearly shown in Fig. 3.

The bearing 0 is prevented from being raised or moved bodily from itsseat by reason of its being more than a semicircle.

To prevent lateral displacement the bearing on its opposite sides isprovided, as herein shown, with flanges 0 (see Fig. 1 and dot ted lines,Fig. 3,) having their. outer edge in the arc of a circle struck from thecenter 0 thesaid flanges being preferably cast integral with thehearing; but I do not desire to limit myself to this particular meansfor preventing lateral movement, as other means may be employed-as, forinstance, the outer surface of the bearing may be provided with one ormore ribs or projectiol'is to enter corresponding grooves in the recessof the journal-box.

The bearing herein shown is not herein claimed, broadly, as it forms thesub j ect-matter of another application, Serial No. 972,319, filed April30, 1888.

I claim 1. A wire-carrying spindle having feed-rolls, a sliding segment,a, to operate them, and provided with screw-threads a, and a threadedsleeve to engage the screw-threads a, combined with a threaded nut, as ahaving a series of adj Listing-holes, 1), arranged in line with or so asto follow the pitch of a thread of the said nut, and with means tosecure said nut in ad ,justed position, substantially as described.

2. The combination, with the sleeve aflpro vided with a bolt-receivinghole, of a nut, as a having a series of adjusting-holes, 1), arranged inline with or so as to follow the pitch of a thread of the said nut, andwith a bolt or screw to secure the said nut and sleeve, substantially asdescribed.

In testimony whereof I have signed my name to this specificat ion in thepresence of two subscribing witnesses.

LOUIS GODDU.

\Vi tnesses:

.TAs. H. CHURCHILL, l3. DEWAR.

